Marie Constance Sasse was a Belgian operatic soprano. "Her voice was powerful, flexible, and appealing", and she was one of the leading sopranos at the Paris Opéra from 1860 to 1870. She created the r

Rosine Bloch was a French operatic mezzo-soprano of Jewish descent who had a successful stage career in Europe between 1865 and 1891. She not only possessed a beautiful, warm, and lyrical voice but wa